Update the description

Author: junichi11

pom.xml

@@ -190,6 +190,8 @@
 <li>Create queries</li>
 <li>Edit an issue comment</li>
 <li>Delete an issue comment</li>
+<li>Create a new pull request</li>
+<li>Change an existing issue to a pull request</li>
 <li>Search issues with issue number or keywords</li>
 <li>Create a new label</li>
 <li>Create a new milestone</li>